• Title/Summary/Keyword: Vertical greenery

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Cost Analysis of Vertical Greenery in Urban Complex

  • Dong, Nannan;Huang, Fang
    • International Journal of High-Rise Buildings
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    • v.10 no.1
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    • pp.29-34
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    • 2021
  • Vertical greenery has become an important technological means to improve the ecological environment condition in urban high-density areas, especially in central areas of Chinese cities. The cost of vertical greenery has significantly increased both in the decision-making process of architectural design and in the assessment of the sustainability potential of urban complexes. The estimation and evaluation of the cost of vertical greenery have become important obstacles to multi-party investment in the construction of vertical greenery. Considering the factors of the building typology and full life-cycle cost, this paper constructs an assessment model of vertical greenery in seven types in urban complex, and suggests an optimized approach to vertical greenery in an urban complex.

Effect of Hydrophilic Polymer on Early Stages of Plant Growth of Euonymus fortunei 'Emerald and Gold' and Hedera japonica in a Vertical Greenery System for Low Maintenance (저관리 용기일체형 벽면녹화에서 황금줄사철과 송악의 초기활착에 미치는 친수성 중합체의 효용성)

  • Ju, Jin-Hee;Kim, Hea-Ran;Xu, Hui;Kim, Won-Tae;Choi, Eun-Young;Yoon, Yong-Han
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.19 no.3
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    • pp.1-9
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    • 2016
  • The objective of this study was to exam early stages of plant growth of Euonymus fortunei 'Emerald and Gold' and Hedera japonica grown in fabric felt bag attached on vertical greenery system with the ratio of hydrophilic polymer to substrate, 0(referred as Control), 0.1, 0.2, or 0.4% (v/v), in order to effectively utilize rainfall for low maintenance. After rainfall, the increase in volumetric water content of substrate amended with the hydrophilic polymer was between 13% and 87%, compared to that in Control. During drought period, higher ratio of hydrophilic polymer to substrate slowly decreased the volumetric water content, and increased plant height, leaf length, leaf width, number of leaves, branch number, and stem diameter of both Euonymus fortunei 'Emerald and Gold' and Hedera japonica with the highest fresh and dry weights of shoots or roots under the 0.1% ratio of hydrophilic polymer.

Nature-Friendly Design Characteristics of Outdoor Spaces in Brand Apartments (브랜드 아파트에 나타난 자연친화적 외부공간의 디자인 특성에 관한 연구)

  • Hwang, Yeonsook;Lee, SongHyun
    • KIEAE Journal
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    • v.13 no.1
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    • pp.93-100
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    • 2013
  • A outdoor space of the brand apartment can improve the quality of the whole environment in apartment and has differentiated identity in apartment housing through various versions of the green space and water space plan. The purpose of this study is to evaluate nature-friendly design characteristics in brand apartments and to offer a basic information for planning of brand apartment. In concrete, nature-friendly design did by green space and water space that can analyze by visual, and investigation contents divided to position, form, user behavior, link space from user viewpoint by case study. This study examined a case of eight brand apartments located in Gangnamgu, Seoul. We has divided the characteristics of a green space into horizontal type, vertical type, multi-dimensional type and has divided the water space into stagnant water type, flowing stream type, waterfall type and fountain type. The findings are summarized as follows: First, in case of the space of brand apartment, the application of horizontal and vertical greenery was lower compare with multi-dimensional green space. The most of items for multi-dimensional greenery have been planned to the open space and promenade. Second, a stagnant water type of water space features well used in most of the cases but a water space of signs of activity like a flowing stream, waterfall, fountain types were underused because of problem of administrative and maintenance expenses. Thirdly, Water space of brand apartments was planned with specialization item by apartment housing but green space does not have differentiated item and was planned by most similar form.

A Study on the Irrigation System of Greenwell Using Ultrasonic Mist Fogger System (초음파안개분무시스템을 이용한 벽면녹화 관수시스템 개발 연구)

  • Kim, Kyung-Hoon;Kim, Yong;Sung, Hyun Chan
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.16 no.6
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    • pp.135-143
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    • 2013
  • Ultrasonic mist fogger and the fan were used for investigating the availability of fog circulation system in greenwall and the potential growing ability of the plant. The mist caused by ultrasonic mist fogger was circulated by the fan through the pipeline and supplied to the pots containing plants. Moisture content of the 3 different soils was measured at different irrigation time points. The moisture content of 15-26% in PP and Co soil was maintained at irrigation of 24H, 18H, 12H in a day. Proper growth condition was found in Ardisia pusilla and Hosta plantaginea at the height of L level after 1 month of growth when the plants were irrigated by the fog circulation system. The results suggest that the fog circulation, by ultrasonic mist fogger to the green walls is system of choice for suppling moisture to plants.

The Post-occupancy Evaluation of Roofgarden at Hospital - A Case Study of Asan Medical Center - (병원 옥상정원의 이용후 평가 - 서울아산병원을 대상으로 -)

  • 김인혜;허근영;최아현;김유일
    • Journal of the Korean Institute of Landscape Architecture
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    • v.31 no.5
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    • pp.58-72
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    • 2003
  • Rooftop greenery has been used as a way to solve urban environmental problems by creating green space in densely populated cities. This study was carried out to suggest more effective designs for roof-garden at hospitals through a post-occupancy evaluation. The roofgarden of Asan Medical Center was evaluated with regards to setting, proximate environmental context, users, and design activity by a multi-method including plan investigations, observations, in-depth interviews and questionnaires. The results are summarized as follows; the users' main activities included resting, walking, and talking. A number of users were observed at shaded spaces sitting on such things as benches, pergolas, and shelters. The satisfaction of the users showed high satisfaction level except in the amount of shade, facilities, and shelter. The variables affecting a overall satisfaction were ‘accessibility’, ‘safety’, ‘quality of surroundings’, and ‘suitability for speculation’. By comparing the design concept with using pattern, designer's intention was not reflected sufficiently in several aspects such as ‘event deck for therapy programs’, ‘grove and path’, and ‘low planters’. This study suggests some design implications; it is necessary to furnish shaded sitting places for passive behaviors and pathways for walking or a light exercise. A wind-break wall with glass windows could widen the users' views in a limited space. Natural shade like tree shade or pergola are more desirable than artificial shades. As for the vertical location of the roofgarden, the middle floor could be better than top area for accessibility. Characteristics of building and users should be considered in detail to provide distinct spaces. Proper technical standards for the greening of artificial ground should be established.